**Note:** Following instruction is useful only if operator is familiar with [[Erba XL-640]] 

^Program [[Erba XL-640]] for the examination.^
|{{:nchsls:c:biochemistry:document:test_parameters.ods|sorted test parameters}}| 
|{{:nchsls:c:biochemistry:document:multixllog.zip|exported test parameters}}|
[[nchsls:c:biochemistry:document:calibration_and_quality_control_frequency|Current calibration frequency policy]] 
^[[Important notes]]^
^[[ Abnormal Alert and Reference Range ]]^
^[[Management of reagent aliquot]]^
^[[loading reagents in Erba XL-640]]^
^[[nchsls:c:biochemistry:document:how_to_calibrate_on_erba_xl-640|Calibration]]^ 
^[[nchsls:c:biochemistry:document:internal_quality_control|Internal Quality Control]]^
^[[how_to_do_external_quality_control_on_erba_xl-640|EQA]]^
 

  -[[Run samples in Erba XL-640]]
  -[[lis_export_result_from_erba_xl_640|Export results from Erba XL-640]] 
  -[[lis_import_result_from_erba_xl_640|Import results in LIS]]     

**Preparation of Aliquots**
  - Write sample id on ependroff cups with permanent marker pen on the rough surface of ependroff cup.
  - Arrange them in ascending order in the rack.
  - Aspirate serum from the centrifuged vacutte with the help of 200 uL pipette.
  - Dispense the serum into the respective sample id ependroff cup.
  - Recap the ependroff cup as soon as possible after dispensing serum.
  - Put ependroff cups with cap in refrigerator(2-8 ') if analysis is delayed.